i had my appendix out many yrs ago , but the scar has reddened and is sore. the last time this happened , my Dr. prescribed an ointment for fungus and it healed. Now, a year later, the skin has reddened again and is sore, due to the top skin folding over the scar, and the fungus is back. I am concerned that the incision could open. has that ever occurred with patients? The incision was not made carefully and has always had this fold of skin above the scar, not allowing air there. Can a person have an old incision redone? Just wondering